I have a similar some what different issue on PS5/MW3, when I use Hybrid VPN (NordVPN also, while VPNing to a server within my state) I get put in games outside of the set Geo filter range. when I turn Hybrid VPN off it again finds games within the Geo filter boundaries. With Hybrid VPN on none of the game servers register in the Geo filter, with it off however its business as usual. I only know I'm not being put on servers within the Geo filter range because the ping is usually 130-160ms in game and the opponents accents are foreign or speak a different language entirely. My goal obviously is to run a VPN while also Geo filtering, as is currently I have to pick 1 over the other.